Home / 9,128.09-12,595.69-5,148.97

Finding the Fourth Proportional to 9,128.09, 12,595.69 and 5,148.97

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Solution

The fourth proportional to 9,128.09, 12,595.69 and 5,148.97 is: 7,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.09 : 12,595.69 = 5,148.97 : x
  2. Step 2: Convert to fraction form
    9,128.09/12,595.69 = 5,148.97/x
  3. Step 3: Cross multiply
    9,128.09x = 12,595.69 × 5,148.97
  4. Step 4: Simplify right side
    9,128.09x = 64,854,829.94
  5. Step 5: Solve for x
    x = 64,854,829.94/9,128.09
  6. Step 6: Final answer
    x = 7,104.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.